Fixes undefined function fatal error because of namespace

Call to undefined function Mcamara\LaravelLocalization\locale_accept_from_http()' in /home/forge/free-ebooks.gr/vendor/mcamara/laravel-localization/src/Mcamara/LaravelLocalization/LaravelLocalization.php:951
Merge pull request #141 from dimsav/patch-1

Fixes undefined function fatal error because of namespace